
Ordering Information
| Product Name | Catalog # | UNIT | Price | Qty | FAVORITES | |
EMP-1 CRISPR Activation Plasmid (m) | sc-420165-ACT | 20 µg | $397.00 |
Mouse Emp1 encodes epithelial membrane protein 1 (EMP-1), a tetraspan membrane-associated protein implicated in regulating cell–cell adhesion, epithelial differentiation, and barrier-related signaling. EMP-1 has been linked to modulation of receptor signaling and cytoskeletal organization that influence proliferation, migration, and stress responses, with context-dependent roles across tissue homeostasis. Altered EMP1 expression patterns have been reported in inflammatory and fibrotic settings and in multiple cancer-associated phenotypes, where it can correlate with changes in invasiveness and cellular plasticity. These features make Emp1 a useful node for studying membrane-proximal signaling programs that couple extracellular cues to transcriptional and phenotypic outcomes.
EMP-1 CRISPR Activation Plasmid (m) provides a targeted, non-destructive approach to upregulating endogenous Emp1 expression without altering the underlying DNA sequence.
EMP-1 CRISPR Activation Plasmid (m) is a three-plasmid synergistic activation mediator (SAM) system engineered for highly efficient, site-specific transcriptional upregulation of the Emp1 locus in human cell lines. The system is built around a catalytically inactive Cas9 (dCas9) carrying two inactivating mutations (D10A and N863A) that eliminate nuclease activity while preserving DNA binding. This dCas9 is fused to VP64, a potent transcriptional activator, and is co-expressed with a blasticidin resistance gene for selection. The second plasmid encodes the MS2-p65-HSF1 fusion protein, a secondary activator complex that works in concert with dCas9-VP64, alongside a hygromycin resistance gene. The third plasmid encodes a target-specific 20 nt sgRNA fused to two MS2 RNA aptamers that recruit the MS2-p65-HSF1 complex to the activation site, accompanied by a puromycin resistance gene. The three plasmids are delivered at a 1:1:1 mass ratio for balanced expression of all system components.
Once assembled at the target locus, the SAM complex binds within approximately 200 bp upstream of the Emp1 transcriptional start site, where VP64, p65, and HSF1 act in concert to recruit transcriptional machinery and drive upregulation of endogenous EMP-1 expression. Unlike nuclease-active Cas9, dCas9 does not introduce double-strand breaks or modify the genomic sequence, preserving the native Emp1 locus and enabling the study of EMP-1-dependent transcriptional responses at the endogenous locus, making it a valuable tool for functional studies, target gene identification, and the modeling of EMP-1 pathway restoration in tumor cells with silenced or reduced Emp1 expression.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.